Stop motion for spinning frames



Nav. 11,1924

1,515,141 R. BURGESS STOP-MOTION FOR SPINNING FRAMES Fil d 0 t. 1l. 1923 2 Sh t -Sh 1 [l5 Z@ `59Z C Se; @Si

2z www Z -x` n l 'l 5 I4 1+- 26.' 401 400 .9," ,fj VfO//z/.O 5565 .570 40 1 7 51 57 l i a Patented Nov. l1, w24,

Middel UNTED STTES ATENT OFFICE.

ROBERT BURGESS, OF NEWTON CENTER, IYTASSACHUSETTS, ASSIGNOR OF ONE-HALF TO JOSEPH H. JONES, F WINTHROP, M'ASSACHUSETTS.

STOP MOTION FOR SPINNING Application filed October 11, 1923. Serial No. 667,871.

To all w/om t may concern.'

Bo it known that I, ROBERT BURGEss, a citizen of the United States, residing at Newton Center, in the county .of Middlesex, State of Massachusetts, have invented a certain new and useful 'improvement in Stop Motions for Spinning Fra-mes, of which the following is a specification, reference being had the-rein to the accompanying drawings.

The invention has relation to the devices with which spinning-frames are provided for enabling the driving power of the said frames to be thrown on andoif at the will of the attendant, as necessary from time to time for starting, stopping, restarting, etc., such frames. f

Heretofore in general practice the man` ually-o-perable control device, usually a shipper-handle, by means of which an attendant has effected the starting and stopping of a spinning-frame, has been in directV connection with a power-control device, usually constituted by a belt-shipper fork, a clutch operating member, or the like. The organization has been such that movement of the shipper-handle fory unshipping purposes directly occasions the unshipping of the driving belt or clutch of the machine. With an organization thusoperating the unshipping action is liable to be effected by the attendant without proper regard to the osition occupied by the traverse-rail at the moment the machine comes to rest, and when such is the case the machine frequently comes to rest with the traverse-rail in a position which is inconvenient for different reasons, or which is the cause of kinking of the yarns, or of breakages of a number of yarns when the machine is restarted.

The general object of the invention is to pro-vide means whereby an attendant is enabledto initiate an unshipping action, but without himself actuallyv effecting the unshipping, and whereby, following the requisite initiating step on the part of the attendant, the unshipping is effected automatically by devices operating to cause stoppage of the machine to take place with the traverse-rail in a given predetermined posit-ion.

Accordingly, stated in general'terms, the

invention consists in mechanism adapted to be called into action by the attendant at will, organized to stop a spinning-frame automatically, with thel traverse-rail ator near a given point in its traversing movement. .ouch mechanism comprises, in conibination with a manually-operable control device, and a power-control device, a moving member coordinated iny its movements with the traverse-rail, and a second member controlledk as to its relations to such moving member by means of the said manuallyopera-ble control device and through which, when placed in operative relations with the said moving member, the moving member acts when the traverse-rail occupies a given positionto occasion the throwing-off ofthe The manually-operable y driving power. control device is a shipper-handle in the case of the illustrative embodiment of the invention which is shown and described herein, but may have other form and character inthe case of other embodiments. The power-control device is a shipper-fork in the case of the said illustrative embodiment, but may have other form and character in the case of other embodiments. The moving member aforesaid is in the case of the said illustrative embodiment coordinated in its movements with the traverse-rail through being connected with and actuated by the traverse mechanism; it may be connected and actuated otherwise in the case of other embodiments. The kremaining member aforesaid, is in the case of such embodiment a device which is placed by the manuallyoperable control device in positionto be engaged by the said moving member.

' One special object, for the attainment of which the invention is designed, is to avoid the formation of kinks in the yarns which are being spun in a spinning-frame, in consequence of the frame being stopped temporarily during the spinning. This special object applies more especially in'connection with spinning-frames having builder motions organized for weft wind. In accordance with ythis particular object of the invention, devices such as aforesaid, combined and operating as briefly hasbeen set forth, are specially organized, etc., to cause a stoppage of a spinning-frame which has been initiated by an attendant to take place with the traverse-rail at the height at lwhich the yarn winds upon the nose of the wettwound mass that is formed upon a bobbin; that is to say, upon the smallest diameter of the tapering portion of the said yarn-1nass- Kinking of the yarns that are being spun, between the front rolls and the bobbins on which they are wound, has been heretofore a customary incident of the stopping which usually occurs with more or less repetition in the operation of a spinning-frame of the live-cap type, or ot a ring-iframe, during the iilling ot' a set of bobbins with the yarns that are being spun in the machine. This kinking is objectionable. Under ordinary conditions olf working, it occurs to the most marked extent when a spinning-frame is stopped while the traversen'ail is in a position causing the yarns to wind upon or near the shoulders of the tapering portions of the forming yarn-masses upon the bobbins; that is to say, upon the greatest diameters of the said taperingr portions. The kinking results by reason of the slackening ot the yarns intermediate the front rolls and the bobbins which occurs when the spinning-traine is stopped. while the winding-on is tal'iing" placeV on or near the shoulders'. Such slackening does not occur when the frame is stopped while the winding-on is taking place on or near the noses. The difference in the tendency to kink is well known' to spinners.

rlhe illustrative embodiment ot' the invention which is shown in the accompanying drawings comprises, in combination, a belt-shipper, automatic means for actuating the same to shift the belt into idling position, a detent restraining the belt-shipper from being so actuated, and means acting upon manual movement of the shipperhandle to interpose a detent-disengaging member between the said detent and a second member hai/*ing movei'nents coordinated with those of the traverse-rail, to actuate the detent-disengaging member to release the detent to cause the shifting of the belt when the traverse-rail next reaches the highest` point of its traverse.

The said illustrative embodiment ot my invention, combined with a live-cap spinning-frame of Conventional type, is shown in the accompanying drawings, in which,-

Fig. 1 is a side elevation and Fig. 2 a top view, principally sectional, of portions of the spinning-traine at the driving end thereof showing the stop-motion devices of my invention combined with the said portions in relation for continued spinning.

Fig. 3 is a side elevation and Fig. 4 a sectional plan view of the saine parts showing the relations thereof after the stop-motion has acted.

Having reference` to the drawings,-

The devices of my invention are shown combined with such portions of a live-cap spinning-t ame as will contribute to an understanding oit' the invention. Bobbins 1, l, are shown in place upon spindles 3, 3. extending upward from spindle-supports 2. 2, iiXed upon the spindle-rail Ll. The livecaps 5, 5, in place on the `blades or barrels ot the bobbins 1, 1, asheretofore with devices of this type,'are engaged by the socalled pivots 6, G, pivoted upon the traverse rail 7 adjacent the apertures therein through which the bobbins extend upward. Through the engagement oi' the peripheries of the said pivots with the exteriors ot the caps the caps` are moved up and 'd0-wn upon the blades of the bobbins in the traversing move'- inents of the traverse-rail, as usual. The spindles B, 3, are rotated from the cylinder S by means of cords i), 9, passing aroui'i'd the said cylinder and also around the whirls 10.10,upon the said spindles. The cylinder 8 is driven directly by means ot a driving band 111, when such band passes around iixed pulley 11 upon the shaft 12 of the cylinder 8. A loose pulley 13 is provided upon the shaft 12 closely adjacent the fixed pulley 11 on the side away from the spin ning-trame. The driving band 111 is controlled by the belt-shipper or fork 21. which is mounted by means of its hub Q10 upon the outwardly extended end of a shipperrod 14k which as usual is arranged for longitudinal. movement in bearings 141 lin the heads 15 or' the machii'ie-rame, said shipper-rod 1d being' combined operatively with the vertical shatt 1G ot the shipper-handle (of usual construction, not shown), by means oi a crank 17 fixed upon the lower end ot the said shipper-shaftlt and havingk a pin 18 working in a slot 19 in an arm 20 fixed upon the shipperrod 4let' by means of' a clamping screw 200. Then the vertical shipper-shaft 16 is turned manually around its axis, in one direction or the other, the shipper-rod 14 is moved endwise through the connections which have just been described. y

As indicated hercinbefore, it has been the usual practice heretotoreto bring about the starting and stopping ot a spinning-frame simply by shitting the belt ionitlie loose to the fixed pulley or yvice versa by a suitable belt-shipper or forl worked directly by hand by the operator. Ordinarily the beit-shipper or 'fork is made tast to the shippenrod 14.A so to more therewith in both directions ofinoveinent ott-he shipper" rod. With this method of startiiig`- and stop. ping the yi'nachine the attendant is liable to iaii to select the proper moment at which to throw the belt ott from the fixed pulleyv to cause the machine to come to rest.

The gist of the invention resides in making provision Jor automatically timing the shifting of thel belt fromy the fixed to the loose pulley to coincide with the ariial of llO the traverse-rail at some predetermined point in its traversing movement, no matter at which moment the shipper-handle may be thrown over by the operator in the undertaking to stop the machine. "In the case of the present illustrative embodiment of the invention, the parts involved in the invention are arranged to occasion the automatic shifting of the power when the traverse-rail is at or near the highest point otl the traverse. For the purposes ot my invention, therefore, in this embodiment of the invention the belt-shipper or fork 21 is mounted by means of its hub 210 upon t-he outwardly-extended end of shipper-rod 14 with capacity to slide loosely thereon, thereby providing for Vendwise movement of the shipper-rod in the unshipping direction without imparting movement to the shipper, and conversely permitting independent shipping movement of the shipper itself upon the shipper-rod, lengthwise of the shipper-rod. To enable the shipper to be actuated by movement of shipper-rod 14 in the direction to shift the driving band 111 tro-1n the loose pulley 13 to the :tast

pulley 11 to start the machine, the shipperrod is provided upon its outer end, outside the shipper, with a collar 140. l/ihen the shipper-rod is moved in the said direction by means of the shipper-handle, the said collar engages with the shipper and-causes the latter to accompany the rod, thereby effecting such shift of the driving' band. To eiiect the automatic actuation of the shipper to shift the driving band from the fast pulley 11 to the loose pulley 13, the shipper is connected with a cross-bar 22, rhaving fixed to it at its extremities the slide-bars 23, 23, which are adapted to slide freely through suitable guide-bearings 24, 24, in the adjacent head 15 of the spinning-frame. These slide-bars 23, 28, extend inwardly of the machine from the head 15 a considerable distance and have attached to their inward extremities chains 25, 25, which pass outwardly over sprocket-wheels 26, 26, fixed on a jaclishaft 27 mounted for rotation in suitable bearings at the front and back oit the. spinning-frame closely adjacent the head at the driving end oi the machine. In the present embodiment this shaft is mounted in bearings pro-vided in connection with hangers 28, 28, secured to the -frame-members of the machine by bolts 29, 29. TWeights 30, 30, suspended upon the chains 25, 25, act with a tendency to urge the slide-bars 28, 23, outwardly of the machine, and correpondingly urge the cross-member 22 and belt-shipper 21 away from the head 15. The pull of these weights 30 transmitted through said chains, slide-bars, and cross-bar to the belt-shipper serves to shift the belt automatically from the fixed to the loose pulley to stop the machine, when such action is permitted. The said action is'controlled and timed by the devices now to be described.

The novel governing` or timing devices which coniine the shitting of the belt and correspondingly the stopping of the spinning-frame, to the moment when the traverse-rail is at the top or nose-end of its traverse, with the yarns extending away from the eXtreme upper parts oi' the noses ot the wound masses upon the respective bobbins are as follows: Upon the ack-shaft 27 is a fixed notched wheel 31, the notch of which is adapted to be entered (as in Fig. 1) by the hook of a. detent 32 pivoited to the frame ot the machine at lWhen the shipper-handle is actuated manually to mo-ve the shipper-rod endwise inthe direction to cause collar to move the shipper 21 to shift the driving band fromloose pulley 13 to past pulley 11, the inward travel of the chains 25 rotates the jackshaft until the notch of wheel 31 is presented under the hook of detent 32 and the hook dro-ps into the notch. Thereby the jaclrshai't is locked from turning reversely, and so long as it remains locked, the shipper is relieved `or the pull ot the weights. At such time, if the shipper-rod is moved manually in the direction toward the loose pulley the shipper-rod will move independently of the shipper. Ati-a point midway or thereabouts of the detent 32 is pivoted a rod 34 depending from the detent, such rod being threaded and provided with a threaded collar 35 and lock-nut- 36 therefor. This rod 34 hangs down loosely within a sleeve 37 to which is imparted, by means of suitable connections, suoli as those indicated by crank 38 and rockshaft 39, an up-and-down reciprocation corresponding iny its timing with the upand-down traversing movements of the traverse-rail 7. This coordinated rocking of rockshaft 89 may be secured in any suitable manner from the traverse mechanism, and need not be described herein.

The sleeve 37 merely reciprocates up and down in accord with the short traverse of the traverse-rail, and does not progress steadily upward with each oscillation like the traverse-rail (in the c;gain) as the winding proceeds. The amplitude oli the vreciprocation of sleeve 37 .is unimportant, so long as the timing corresponds with that of the traverse-rail. `The threaded collar 35 upon rod 84 which hangs down within sleeve 37 is adjusted to stand slightly above the point reached by theftianged top end 370 offsleeve 87 when such sleeve is at the highest point of its stroke up and downk relative to the said rod 34. This arrangement enables the parts to stand in the relation illustrated in Figs.` 1 and 2 while the el O spinning-iframe continues in operation, without the detent being affected by the reciprocation of sleeve 87.Y

The disengagement of the detent 32 from the notch of `d'etent-wheel 31 is brought about by means of a fork 40 pivolted at 400 to a depending finger 41 at the free end of a lever 42, the latter' being pivoted to the frame of the machine at 48 with capacity to swing in a horizontal plane. The tines of this forl embrace the rod 34 between the threaded collar and the |top end 370 of sleeve 37. This fork 40 has at a point midway of its length a vertically thickened portion 401,

i' adapted to be entered upon occasion as a filling-in piece between the threaded collar 35 and the top 370 of sleeve 37. n

With the parts in the relations shown in Figs. 1 and 2, the operator wishing to stop the spinning-frame moves the shipper-handle in usual manner, rotating the vertical shaft 16 in the direction of the arrow in Fig. 2; the arm 17 through engagement with arm 20 moves the shaft 14 endwise to the left so that its extremity bearing the collar 140 pinned thereto moves away from the framehead into the position shown in Figs. 3 and 4. The belt-shipper 21 being free upon shaft 14, does not accompany said 'shaft in its outward movement. However, the arm in its movement to the left strikes toward the end of its travel against a linger 44 projecting horizontally from lever 42, thereby swinging said lever 42 horizontally toward the left and moving' the fork 40 to thelett and introducing the vertically thickened portion 401 between the threaded collar and the top 370 oit sleeve 37, as shown in Fig. 3. If' the traverse-rail is at the mo'- ment at any other point than the highest point of its traverse, the sleeve 87 will correspondingly be in a lowered position spaced away from the threaded collar 35 to such an exten-t that the introduction of the thickened portion 401 of fork 40 will in no' way affect the position of threaded collar 35. Vhen the traverse-rail, however, next reaches the highest point of its traverse, and the sleeve 37 the correspondingv highest point of its oscillation, the thickened portion 401 of the fork 40 will act as a motion-transmitting` member to lift the threaded collar 35 above its normal position, and through the rod 34 to raise the detent 32 out of the notch in the notched wheel 31 fixed upon jackshaft 27 the same lifting effect on detent 32 occurs, of course, when the shipper-handle is thrown to introduce the thickened portieri of the fork 40 between the sleeve and the threaded collar, if the traverse-rail rhappens to be at the described highest point. Thereupon the jackshaft 27 is free to rotate, and the weights 80, 30, act to thrust slide-bars 23, 23, to the left, carrying with them the crossbar 22 which in turn moves the belt-shipper 21 to the left and shifts the belt', stopping the machine at the desired point in the winding, with the yarn extending away from the top portion of the noses of the wound masses upon the bobbins on the respective spindles. The parts assume the relations shown in Figs. 3 and 4.

To provide for the resetting of the stopmotion devices by the mere reverse movement of the shipper-handle, I provide a collar fixed in proper position upon shaft 14 by clamping' screw 46. This collar acts against a suitable yoke 47 forming` the middle portion of lever 42 as the shipper-rod 14 moves to the right, to swing lever 42 toward the right so as to withdraw the fork 40 to the normal position occupied by it during the running of the machine as in Figs. 1' and 2. ln this movement of shipper-rod 14 toward the right, the collar 140 at the extreme left-hand end of lshaft 14 moves the belt-shipper 21 in the direction to shift the belt from the loose to the fixed pulley and start the machine, and this action operates also to move rods 23, 23, inward so as to pull chains 25, 25, in such direction, thereby turning` ackshaft 27 and raising the weights 30, 80. The re-engageinent of pawl or detent 32 with the shoulder kor tooth of detentwheel 51 then holds the jackshaf-t from turning reversely and retains the parts in running` condition.

What is claimed as the invention is 1. A stop-motion for spinning-frames comprising in combination a manually-operable shipper-control.device, a belt-shipper, automatic means for actuating the latter to shift the belt into idling position, a detent for restraining the belt-shipper from being so actuated, a knocking-off member which moves in unison with the traverse-rail, and a iilling-in member that is interposed by movement of the shipper-control device between the said detent and said knocking-cti' member and through which the detent is released when the traverse-rail reaches the highest point of its traverse.

2. A stop-motion for spinning-frames comprising` in combination with the driving means thereof a belt-shipper, a manually actuated rod operative to shift; the beltshipper into driving position when moved in one direction and moving freely in the opposite direction with respect to the beltshipper, means tending to more the beltshipper into idlinp)Y position, a detent restraining` said means from moving the beltshipper, a member reciprocating in unison with the traverse-rail of the spinning-frame, and a filling-in piece which is interposed between the said member and the said detent by movement ot the said manually actuated rod so to enable the said member to disengage the detent and permit unshipping as the traverse-rail arrives at the top of its traverse.

3. In a spinning-frame, in combination, means for automatically unshipping the driving connections, a detent restraining said means from acting, a member reciproeating synchronously with the traverse-rail of the spinning-frame, a filling-in pieceV adapted to be interposed between the reciprocating member and the detent so as to be actuated by the said reciprocating member to release the detent and cause the unshipping of the driving connections when the traverse-rail is at or near a predetermined point of its traverse, and a manually-operable control device for said detent.

4i. In a spinning-frame, in combination, means for automatically unshipping the driving connections,I a detent restraining said means from acting, a member reciprocating synchronously with the traverse-rail of the spinning-frame, a filling-in piece adapted to be manually interposed between the reciprocating member and the said detent so as to be actuated by the said reciprocating member to release the detent and cause the unshipping of the driving connections when the traverse-rail attains the highest point of its traverse, and a manually-operable control device for the said detent.

5. In a spinning machine, in combination, stop-motion mechanism comprising a manually-operable shipping device, a shipper, a longitudinally movable shaft actuated by said shipping device, acting` in one direction of movement to move the shipper to ship on the driving band, but moving in the reverse direction without changing the position of the shipper, automatic unshipping devices comprising yielding-ly actuated tension chains operatively combined with the shipper, a jackshaft having wheels around which said chains pass, a detent for said jackshaft for preventing turning movement thereof and the unshipping action, a member moving in unison with the traversing movements of the traverse-rail but normally without affecting the detent, and a filling-in piece that is actuated by the movement of the said shaft in the said reverse direction, into position between the detent and the movable member to enable the latter to disengage the detent as the traverse-rail arrives at the top of its short traverse, thereby to bring about unshipping.

6. In a spinning-frame, in combination, means for automatically unshipping the driving connections, a detent restraining said means from acting, a member moving in unison with the traversing movements of the traverse-rail, but normally without affecting the detent, and a filling-in piece that is actuated manually into position between the detent and the movable member to enable the latter to disengage thel detent as the traverse-rail arrives at the top of its short traverse, whereby to bring about unshipping.

7. A stop-motion for spinning-frames comprising in combination manually-operable shipper-control devices, an endwise movable shaft operably combined with the said devices, a belt-shipper slidably mounted on said shaft and actuated to ship on the driving band. by movement of the shaft in one direction, a member for actuating said belt-shipper into idling position, means tending to move said member comprising slidebars secured to said member, and weighted tension chains connected with such slidebars, ajackshaft having sprockets fixed thereon over which the said chains pass, a notched wheel fixed upon said jackshaft, a detent engaging with said notched wheel and restraining said means from acting, a member reciprocating in unison with the traverse-rail of the spinning-frame, and a filling-in piece which is interposed between the reciprocating member and the said detent by movement of the longitudinally movable shaft in the reverse direction to thereby bring about disengagement of the detent and automatic unshipping action.

8. In a spinning-frame, in combination, a manually-operable shipper device, shipping mechanism normally uncontrolled by said shipper device for unshipping purposes, a member moving in unison with the traverserail Vof the spinning-frame, and a second member connected with the said shipper device through which the member rst mentioned acts at or near the end of the upward traverse of the traverse-rail to occasion unshipping.

9. In a spinning-frame, or the like, the combination with a manually-operable control device, a power-control device, a moving member coordinated in its movements with the traverse-rail, and a second member controlled as to its relations to such moving member by means of the said manuallyoperable control-device and through which, when placed in operative relations with the said moving member, the moving member acts when the traverse-rail occupies a given position to occasion'the throwing-olf of the driving power.

l0. In a spinning-frame, or the like, the combination with a shipper-handle, a shipperfork, a moving member connected with and actuated by the traverse mechanism so as to be coordinated in its movements with the traverse-rail, and a second member controlled as to its relations to such moving member by means of the said shipper-handle and through which the moving member acts to occasion the throwing-olf of the driving power.

11. In a spinning-frame, or the like, in

combination, a beltshipper, automatic means for actuating the same to shift the same into idling position, a detent restraining the belt-shipper from being so actuated, a detent-disengaging member, a second member having movements coordinated with those of the traverse-rail, and means acting upon manual movement of 'the shipper-handle to interpose said detent-disengaging member between the said detent and the said second member, to actuate vthe detent-dis engaging. member to release the detent to cause the shitting of 'the belt when the traverse-rail next reaches the highest point of its traverse.

12A stop-motion for spinning-frames, comprising in combination a manually-operabley shipper-control device, a shipper, automatic means for actuating the latter. to yunship the driving power, a detent for restraining the shipper trom being so actuated, a knocking-off member having movement coordinated with that of the traverserail, and a filling-in member that is interposed by means of the shipper-control device between the said detent and said knocking-oit member and through which the detent is released when the traverse-rail is at or near the nose-end of its traverse.

13. A stop-motion for spinningetrames, comprising in combination a manually-operable shipper-control device, a shipper, automatic means for actuating the latter to unship the driving power, a ydetent for restraining the shipper from being so actuated, a knocking-ott member having movement coordinated with that ot the traverse-rail, and a filling-in member that is interposed by means oit the shippercontrol device between the said detent and said knocking-off member and through whichk the detent is released when the traverse-rail is at a predetermined point of its traverse.

ROBERT BURGESS. 

